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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS : 2D Depth-integrated Finite Volume Flow Model for Hybrid Unstructured Meshes
2D Depth-integrated Finite Volume Flow Model for Hybrid Unstructured Meshes
Author : Yaoxin Zhang, Yafei Jia and Tingting Zhu
This paper presents a two-dimensional depth-integrated hydrodynamic model for surface flow simulations, the unsteady depth-integrated Reynolds equations are solved using Finite Volume Method (FVM) on a hybrid (triangles and quadrilaterals) unstructured mesh system with collocated variable arrangement. In this model, a new evaluation method for computing the gradients at the cell edges was proposed to improve the solution due to mesh irregularity and non-uniformity. This new second-order method is computing-efficient, since no interpolation for variables to cell vertices is necessary. The robustness and accuracy of the present model have been demonstrated by one experimental case and an application to a natural river with complex shape.
File Size : 1,844,845 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 19/07/2016
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